Car-brake equalizer.



H. L. BLUNGK.

UAB BRAKE EQUALIZER. APPLIoATIoN FILED MAY 14,1910.

Patented Deo.6,1910.

a sums-s111191 1.

/1 TTORNE V8 H. L. BLUNCK.

CAR BRAKE BQUALIZBR. APPLIOATIONVFILED MAY 14,1910.

Patented Dec.6,1910.

2 SHEETS-SHEET 2.

ATOR/VEYS HENRY LEWIS BLUNCK, F SIU'UX CITY, IOWA.

CAR-BRAKE EQUALIZEB.

Speeication of Letters Patent.

Patented nec. c, 1910.

. Application led May 14, 19 10. Serial No.' 561,288.

To whom' 'it mayconcem:

Be it known that I, HENRY LEwIs BLUNCK,

f a citizen of theUnited States, and a resi-dent of Sioux Cit inthe county of Woodbury and 'State o Iowa, have invented `an Imroved Car-Brake Equalizer, of which the gollowing is a specification.`

In the ordinary brake attachment o ffouri wheeled car-trucks, the brake actionls not 10 duly equalized on the respective` trucks. I

have devised an improvement which is simple in construction and eiiectivein use and which constitutes an addition to the ordinary brake' attachment and wherebythe action ofthe brakes of both trucks is equalized.

In the accompanying drawing Figure 1 is a plan view'o t e main portion of my equalizlng brake attachment. Fig. 2 is a lperspective View of the same. Fig. 3 is a p an View illustrating the connectionof my attachment with a four-wheeled car-truck.

The numeral 1 indicates a slotted bar v which may be termed a keeper, the same being in practice secured centrally to the uhder side of a car body parallel to its longitudinal axis. A'transverselever 2 is piv-` oted centrally in the slot of the keepei` 1, and

rods 4 are plvoted to its ends and extend in o posite directions to the ends of the car wlhere they are pivotally connected with hand-levers 4* or other devices adapted for operating, that is for moving, them lengthwise in order to operate the brake. Rods or bars 5 are vpivoted to the transverselev'er 2 near its ends, as indicated at 7 and their opposite ends are connectedbyja slotted bar 6v whoseparallel portions extend over and under the keeper 1, the bars 5 being arranged on opposite sides of the lever 2 and 40 at an angle thereto, as shown.

Brake rods 3 are pivotally connected with the bars 5, 6, at their junction, and they are slotted or bifurcated 1n order to accommo-- date the lever 2 whichfpasses through them.

* One of the rods 3 is pivotally connected vith7 'a lever 8-see' Fig. 3-'- which forms part of the brake mechanism properfof a fourwheeled car-truck, and the. other rod 3 extends forward and is in practice similarly connected with thebrake mechanism of another truck. In other words, the rods 3 ex- I tend respectively to the front and rear trucks and are operativel connected with the brake mechanism thereo l. By this construction, arrangement, and

combination t of of each truck on the four wheels thereof is equalized. In the ordinary brake attachment, which' consists of a keeper 1, lever 2, and brake rods 3 pivoted directly to the lever parts, I produce a brake 'ati tachment by whlch the action of the brakesV 2, such equalization is impracticable if the brakes are set tighter at one end, that is to say, on one truck, than the other, for in such case one setA of brakes will act strongly on 'four wheels but' weakly or ineiiciently on` the other truck. In my invention it is immaterial if the brakes of one truck are set tighter than the other, since my equalizing attachment will adjust itself so that the rods ofthe other truck will pull with the l'same effeet; in other words, the pressure on the wheels of each truck will be practically the same. What Iclaim is:- l. The improved car-brake equalizing attachment, comprising a transverse lever pivoted ccntrally, rods (p p said lever and exten ing in opposite directions Vand connected with devices adapted 'to be operated vmanually,.and the equali'zing ivoted to the ends of;

attachment proper comprising bars 5 piv-.

oted to the aforesaid lever near its ends, on

opposite sides thereof, a connecting bar 0 which is pivota-lly attached tothe inner ends .of said bars 5 and extends across the lever'- diagonally, and 'brake rods pivoted at the junction of the bars 5 and thel connecting bar, and. extending in op osite. directions for connection with the bra e mechanism of front and rear trucks, substantially as described.

2. The combination with the brake mecha- Y nism of -front and rear four-wheeled'trucks, of the equalizing brake attachment comprising a transverse lever pivoted centrally beneath a car-body, bars 5 pivoted to said lever near its ends and extending inward, at an angle thereto' and onl opposite sides? 10o ,the inner ends o fthe ba`rs5, and rods 3 of the same', a ri 'd connector pivoted to pivoted at .the samepoint and'extending'in opposite vdirections to the brake mechanism,

of the respective trucks, described.

HENRY LEWIS BLUNcKa- Witnesses:

W. F. DUNcnN, CHAs. H. Hnnrnn.

substantiallyv as 

